Cypress CY3270 manual Light Sensing Demonstration

Getting Started

2.4.3Light Sensing Demonstration

The light sensing demonstration shows how to use an ambient light sensor to control LED intensity. Follow the CapSense Touch Sensing based guidelines in section 2.5 Exploring the FTMF Expansion Card Demonstration Projects to simulate, build, and program the FTMF Expansion Board with the ambient light sensing demonstration. Cover the light sensor (see Figure 2-1 on page 8) with the palm of your hand and notice how the intensity of the LED changes. Removing your palm leads to the LED intensity reverting back to its initial state. The CY8C21434 PSoC that resides on the FTMF Expansion Card detects the ambient light and controls the LEDs output.

Figure 2-4. Light Sensing Demo Schematic

CY3270 PSoC® FirstTouch™ Guide, Document # 001-15945 Rev. ** 11